Planing-machine.



PATENTED APR. 30. 1907.

R. J. MINNBRY.

' PLANING MACHINE.

APPLICATION FILED SEPT.1. 1906.

3 SHEETS-SHEET 1.

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R. J. MINNERY. PLANING MACHINE.

APPLIOATION FILED SEPT-1. 1906.

3 SHBETSSHEET 2.

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R. J. MINNERY. PLANING MACHINE. APPLICATION FILED SEPT. 1. 1900.

3 SHEETS-SHEET 3.

Ira/enrich 741 Ji-i gafne ROBERT J. MINNERY, OF PORTSMOUTH, OHIO.

PLANlNG-IVIAOHINE.

Specification of Letters Patent. Application filed September 1,1906.

Patented April 30, 1907.

Serial No. 332,964.

To all whmn it may concern: I

Be it known that 1, ROBERT J. MINNERY, a citizen of the United States, residing at Portsmouth, in the county of Scioto and 1 State of Ohio, have invented certain new and 1 useful Improvements in Planing-Machines, of which the following is a full, clear, and eX- I act description, reference being had to the accompanying drawings, forming part of this specification. 1

My invention relates more particularly to heavy car-sill dressers, planers and matchers and to that part of the machine known as the cutter-head, of which there may be any number from one to four, usually four, so disposed on the frame work of the machine as to form a rectangular throat, through which the timber to be dressed, is passed and has 1 all four of its sides dressed at once and comes 1 out finished and of the exact dimensions re- 1 quired. The great difficulty in machines of 1 this character is the loss of time required in 1 taking off and resetting knives, for they be- I come dull very soon, on an average, they have to be reground every twenty or twenty five minutes and while the knives have to have a length and capacity for the largest size stuff, frequently smaller stuff is required to be dressed, say an inch by two inches, or two inches by four inches, which uses only a very small proportion of the surface of the knife blades; such surfaces however are dulled and the entire knives have to be taken off and reground, the un-dulled portions as well as the dulled portions, thus wearing away the knives unnecessarily and requiring the stopping of the machine, while a duplicate set of knives, previously re-ground are secured to the head.

It is the object of my invention to remedy this serious loss of time and deficiency of the capacity of a machine during a days run as Well as the using up of knife material by 1 making each cutter-head with its attached knives, longitudinally adjustable without even stopping the machine. Say, for instance, one by two stuff is being run through the machine and the vertical knives cutting the one inch side are up to their full extent and the horizontal knives, cutting the two 1 inch side, are out to their full extent, and the knives have a length of forty-eight inches or less; as soon as the parts acting on the wood I become dull, it is only necessary to shift the 1 knives longitudinally to take the dulled part out of the path of the wood, and to bring a fresh sharpened part in the path, without stopping the machine, and thus repeatedly until the entire cutting surface of the knife has become dulled, which in small stuff may not happen in a day or longer, even with hard woods.

The above, broadly stated, is my invention and one form of construction of the device and its application to a planer will be illustrated and described, and the invention will be fully pointed out in the claims.

In the accompanying drawings :Figure 1, Sheet 1, is a side elevation of a planer at tachment embodying my invention, looking at it from its non-cutting side. Fig. 2, Sheet 1, is a corresponding view looking at the attachment on its cutting side. Fig. 3, Sheet 1, is a top plan view of Fig. Fig. 1, Sheet 1, is an enlarged sectional plan. on the dotted line 1--1 of Fig. 2. Fig. 5, Sheet 1, is a corresponding view on the dotted line 5*5 of Fig. 1. Fig. 6, Sheet 2, is a plan view showing the arrangement of the cutter-heads on the frame. Fig. 7, Sheet 2, is a side elevation of the same, looking from the direction of the arrow of Fig. 6. Fig. 8, Sheet 1, is a sectional detail to be referred to hereafter.

Fig. i), Sheet 3, is a plan of the top cutter. Fig. 10, Sheet 3, is a side elevation of the same. Fig. 11, Sheet 3, is an end elevation looking from the right of Fig. 10. Fig. 12, Sheet 3, is an opposite sectional elevation on the dotted line 6-6 of Fig. 10.

The same numerals of reference are used to indicate identical parts in all the figures.

I will first proceed to describe by reference to Sheet 1 and the figures thereon, my improved upright cutter-dreads and their attachments. The cutter-dread 9 with its attached blades 10 (Figs. 4 and 5) is of the usual construction and is made fast upon a shaft 11 journaled in the frame work 12 and has upon it a feathered driving pulley 1.3. The frame work 12, as seen in Figs. 1. and 2, is composed of a bar parallel with the shaft 11, is fast to a cross piece Li and an upper cross piece 15, and also a lower cross piece 16. The main bar of the frame work has a bar 17 parallel with it and connecting the bars 1 1 and 15. There is also another bar 18 with an attached plate 19 upon which the sill 6 rests and which serves as a rigid attachment to the frame work of the planer by means of an ad justable slide bar 20, which is slotted to receive the clamping set screw 21. It will be seen that the frame composed of the bars 15,

17, 22, 14, 1 2, and 16, all of which I call the frame 12, are rigidly connected together and slide in ways in the bar 18, as seen in Fig. 8, and. a set screw 23 provided with a hand Wheel 24 having engagement with the sill plate 19, serves to lower the cutter-head with its knives, as well as the usual chip deflector the chips cordance with the quantity of cl taken from the material to be cut.

I will now describe the horizontal cutters illustrated in Figs. 6, 7, 9,10, 11 and 12. 1,

lips to be and the rails 1 are on each side of the bed 2. he upper horizontal cutter 30 is supported on a slotted inclined upright ,31 as seen in l Fig. 7 so as to be adjusted up and down by and a guide bar 34 properly supported on a The driving shaft 11 is supported or projection 27 of the support 18, so that the shaft 11 can freely pass through it, though driven by it.

he foregoing fully describes and l i l l trates one form, and a simple one, for carrvl whereby as My invention is applicable to a planing machine adapted to dress only one side of a piece of lumber, or to dress two, three or four means for adjusting and holding them during the cut ting operation in different positions of such lengths to engage the work, whereby as a partial surface of said knives may become dulled, a sharpened undulled portion ofthe knife blades may be presented to the work, substantially as described.

2. In a planing machine, a plurality of cutter-heads, knives adapted to be attached thereto, said cutter-heads and knives occupying two or more said cutt ples in length of the surfaces which they are to dress, means for adjusting and holding them during the cutting operation in differentpositions of such lengths to engage the work, and supports for the work to be dressed, a partial surface ofsaid knives becomes dulled, a sharpened undulled por tion of the knife blades may be presented to the work, substantially as described.

3. In a planing machine, a throat composed of supports for the work and adjustable both longitudinally and vertically, cutter-heads provided with knives having a proper bite within said throat, said cutter heads and knives being in multiples in length of the surfaces which they are to dress, means for adjusting and holding them during the cutting operation in different positions of such lengths to engage the work, and driving mechanism for said cutter-heads and knives, substantially as described.

ROBERT J. MINNERY.

itnesses C. H. VVALDEN, J. F. STRAYER.

if lumber of 

